Utica Boilers H2OST 安装指导

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I. General Information
IMPORTANT INFORMATION – READ CAREFULLY
NOTE: Equipment shall be installed in accordance with those installation regulations required in the area where the 
installation is to be made. These regulations shall be carefully followed in all cases. Authorities having jurisdiction shall 
be consulted before installations are made. All wiring on water heaters shall be in accordance with the National Electrical 
Code and/or local regulations.
Improper installation, adjustment, alteration, service or maintenance can cause property damage, personal injury, or loss 
of life. Read and understand the entire manual before attempting installation, start-up, operation, or service. Installation 
and service must be performed only by an experienced, skilled installer or service agency.
This water heater contains very hot water under high pressure. Do not unscrew any pipe fittings or attempt to disconnect 
any components of this water heater without positively assuring that the water is cool and has no pressure. Always wear 
protective clothing and equipment when installing, starting up or servicing this water heater to prevent scalding injuries. 
Do not rely on the pressure and temperature gauges to determine the temperature and pressure of the water heater. 
This water heater contains components that become very hot when the boiler is operating. Do not touch any components 
unless they are cool.
Failure to follow all instructions in the proper order can cause personal injury or death. Read all instructions, including all 
those contained in component manufacturers’ manuals before installing, starting up, operating, maintaining, or servicing 
the water heater.
To reduce the risk of excessive pressures and temperatures in this water heater, install temperature and pressure 
protective equipment required by local codes but no less than a combination temperature relief valve certified by a 
nationally recognized testing laboratory that maintains periodic inspection of production of listed equipment or materials, 
as meeting the requirements for Relief Valves and Automatic Shutoff Devices for Hot Water Supply Systems, ANSI 
Z21.22-latest edition. This valve must be marked with a maximum set pressure not to exceed the marked working 
pressure of the water heater. Install the valve into an opening provide and marked for this purpose in the water heater, 
and orient it or provide tubing so that any discharge from the valve will exit only within 6 inches above, or at any distance 
below, the structural floor, and cannot contact any live electrical part. The discharge opening must not be blocked or 
reduced in size under any circumstances.
Heat transfer medium must be water or other non-toxic fluid having a toxicity rating or class of 1, as listed in clinical 
Toxicology of Commercial Products, latest edition. The pressure of the heat transfer medium must be limited to a 
maximum of 60 psig by a listed safety or relief valve.
I.    General Information & Safety Instructions ................................................................... 2
II.   Pre-installation Considerations ................................................................................... 5
III.  Electrical ................................................................................................................. 7
IV.   Operation ............................................................................................................... 7
VI.  Maintenance ............................................................................................................ 8
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